package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;

import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;


import java.util.Collection;
import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author atguigu
 * @since 2023-03-10
 */
@Api(description = "讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
//@CrossOrigin
public class EduTeacherController {
    @Autowired
     private EduTeacherService eduTeacherService;
     //1查询讲师表中的所有数据
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher(){
        //调用service方法实现查询所有操作
        List<EduTeacher> list = eduTeacherService.list(null);

        return R.ok().data("items",list);
    }



    //2逻辑删除讲师的方法
    @ApiOperation(value = "逻辑删除讲师")
    @DeleteMapping("{id}")
    public R removeTeacher(@ApiParam(name = "id",value = "讲师id",required = true) @PathVariable("id") String id){
        boolean flag = eduTeacherService.removeById(id);
        if (flag){
            return R.ok();
        }else {
             return R.error();
        }

    }
    //分页查询讲师的方法
    //current当前页
//    limit每页记录数
    @ApiOperation(value = "分页查询")
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable("current") long current,@PathVariable("limit") long limit ){
        //创建page对象
      Page<EduTeacher> pageTeacher=new Page(current,limit);
//      调用方法实现分页
//        try {
//            int i = 10 / 0;
//        }catch (Exception e){
//            //执行自定义异常
//            throw new GuliException(20001,"执行了自定义异常处理");
//        }
        //掉欧阳那个方法的时候，底层封装，把分页所有数据封装到pageTeaacher对象里面
        eduTeacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合
        return  R.ok().data("total",total).data("rows",records);
    }

    //条件查询带分页方法
    @ApiOperation(value = "条件查询带分页方法")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit, @RequestBody(required = false) TeacherQuery teacherQuery){
        //创建一个page对象
        Page<EduTeacher>pageTeacher=new Page<>(current,limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
        //多条件组合查询//mybatis动态sql
//        判断条件值是否为空，如果不为空拼接条件
        String name=teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        if (!StringUtils.isEmpty(name)){
//构建条件
            wrapper.like("name",name);
        }
        if (!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }
        if (!StringUtils.isEmpty(begin)){
            wrapper.ge("gmt_create",begin);
        }
        if (!StringUtils.isEmpty(end)){
            wrapper.le("gmt_create",end);
        }
        //调用方法实现条件查询分页
        eduTeacherService.page(pageTeacher,wrapper);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合
        return R.ok().data("total",total).data("rows",records);
    }

    //添加讲师的接口
    @ApiOperation(value = "添加讲师的接口")
    @PostMapping("addTeacher")
    public  R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = eduTeacherService.save(eduTeacher);
        if (save){
            return R.ok();
        }else {
            return  R.error();
        }
    }

    //根据id查询
    @ApiOperation(value = "根据讲师id查询信息")
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable("id")String id){
        EduTeacher eduTeacher = eduTeacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

    //修改讲师信息
    @ApiOperation(value = "修改讲师信息")
    @PostMapping("editTeacher")
    public R editTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = eduTeacherService.updateById(eduTeacher);
        if (flag){
            return R.ok();
        }else {
            return R.error();
        }
    }
}

